Question

3. (x-2)7=2X-4 to com DUVIDA

Answer 1

3x-6+7=2x-4
x=-3
eu acho

Answer 2

$3 (x-2)7=2x-4\\21 (x-2)=2x-4\\21x-42=2x-4\\21x-2x=42-4\\19x=38\\\\x= \dfrac{38}{19} \Rightarrow \Larged\boxed{x=2}$